Mathematical modeling of the depolymerization of polyamide mixtures - Part I: Kinetic mechanism and parametric studies in batch reactors

被引：21

作者：

Kalfas, GA ^{[1
]}

机构：

[1] Dupont Co, Kinston, NC 28502 USA

来源：

POLYMER REACTION ENGINEERING | 1998年 / 6卷 / 01期

关键词：

D O I：

10.1080/10543414.1998.10744482

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

A simplified mechanism for the depolymerization of nylon-66 and nylon-6 mixtures via the ammonolysis route is proposed here. The mechanism includes the amide link breakage and amide end dehydration (nitrilation) reactions, plus the ring addition and ring opening reactions for cyclic lactams in nylon-6. On the basis of the proposed mechanism, a kinetic model has been developed for the ammonolysis of nylon mixtures. Model predictions and results from parametric studies are presented and discussed.

引用

页码：41 / +

页数：26

共 13 条

[1]

AGRAWAL SR, 1975, POP PLAST, V20, P11

[2]

Datye K.V., 1991, INDIAN J FIBRE TEXT, V16, P46

[3] PHOSPHONITRILIC CHLORIDE - DEHYDRATION OF AMIDES TO NITRILES [J].

GRAHAM, JC ;

MARR, DH .

CANADIAN JOURNAL OF CHEMISTRY-REVUE CANADIENNE DE CHIMIE, 1972, 50 (23) :3857-3860

[4] SIMULATION OF REVERSIBLE NYLON-6,6 POLYMERIZATION [J].

KUMAR, A ;

KURUVILLE, S ;

RAMAN, AR ;

GUPTA, SK .

POLYMER, 1981, 22 (03) :387-390

[5]

Mckinney R. J., 1994, US Patent, Patent No. [5,302,756, 5302756]

[6]

MCKINNEY RJ, 1995, Patent No. 5395974

[7] AMIDE-EXCHANGE REACTIONS IN MIXTURES OF N-ALKYL AMIDES AND IN POLYAMIDE MELT BLENDS [J].

MILLER, IK .

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, 1976, 14 (06) :1403-1417

[8]

OGATA N, 1960, MAKROMOLEKUL CHEM, V42, P52

[9]

RAY WH, 1973, J MACROMOLECULAR SCI, V9, P1

[10]

SMITH RA, 1995, REC 95 DAV SWITZ

← 1 2 →